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SLTS215B – MAY 2003 – REVISED DECEMBER 2003

Standard Application

Features

(0.8 V to 2.5 V)

(Non-Latching, Auto-Reset)

UL 1950, CSA 22.2 950, EN60950

VDE (Pending)

Compatible

Description

The PTH03060W non-isolated power

module is small in size but big on per-

formance and flexibility. Its high output

current, compact footprint, and industry-

leading features offers system designers

a versatile module for powering complex

multi-processor digital systems.

This product employs double-sided

surface mount construction and provides

high-performance step-down power

conversion for up to 10 A of output cur-

rent from a 3.3-V input bus voltage.

The output voltage is adjustable and can

be set to any value over the range, 0.8 V to

2.5 V, using a single resistor.

This series includes Auto-Track™

Sequencing. Auto-Track simplifies the

task of supply voltage sequencing in a

power system by enabling modules to

track each other, or any external voltage,

during power up and power down.

Other operating features include an

on/off inhibit, margin up/down controls,

and the ability to start up into an existing

output voltage or prebias. To ensure tight

load regulation, an output voltage sense

is also provided. A non-latching over-

current trip serves as load fault protection.

Target applications include complex

multi-voltage, multi-processor systems

that incorporate the industry’s high-speed

DSPs, micro-processors and bus drivers.

Auto-Track™

Sequencing

Pin Configuration

Pin

Function

1

GND

3

Inhibit *

7

GND

8

Track

9

Margin Down *

10

Margin Up *

* Denotes negative logic:

Open

= Normal operation

Ground = Function active

NOMINAL SIZE =

1 in x 0.62 in

(25,4 mm x 15,75 mm)

Margin Up

Margin Down

V

IN

L

O

A

D

C

IN

330 µF

(Required)

C

OUT

330 µF

(Optional)

Inhibit

GND

GND

V

OUT

V

Track

R

SET

1 %, 0.1 W

(Required)

PTH03060W

(Top View)

1

2

10

9

8

7

6

5

4

3

PTH03060W —3.3 V Input

10-A, 3.3-V Input Non-Isolated

Step-Down Switching Power Module

Rset = Required to set the output voltage to a value

higher than 0.8 V. (See spec. table for values)

Cin = Required 330 µF capacitor

Cout = Optional 330 µF capacitor